Section 513. Doors Hung So as to Be Self-Closing.--All doors used in assisting or in any way affecting the ventilation shall be so hung and adjusted in such manner as to be self-closing.
Doors Hung So as to Be Self-Closing
Act 346 of 1965, § 513, under PENNSYLVANIA ANTHRACITE COAL MINE ACT.
Act 346 of 1965, § 513